An explosion-proof diesel engine wet concrete paver for underground coal mines

Abstract

The invention discloses an explosion-proof diesel engine wet concrete paver for underground coal mines, and relates to the field of underground coal mine engineering machinery. It includes a crawler chassis assembly for providing power for walking, and a hopper feed chute assembly and an explosion-proof diesel engine assembly above it. The explosion-proof diesel engine assembly is provided with a vibrating mechanism lifting cylinder connected to the vibrating mechanism, and the vibrating mechanism includes a vibrating connecting short plate and a vibrating connecting long plate, and the vibrating connecting long plate is connected to a vibrating mechanism assembly provided with a pneumatic vibrator; a cab is also provided, and a shock-absorbing cylinder connecting plate is provided on the lower cover plate of the cab, and a shock-absorbing cylinder is provided with one end connected to the shock-absorbing cylinder connecting plate and the other end connected to the vibrating mechanism assembly, and the vibrating mechanism assembly is provided with a pneumatic vibrator; the crawler chassis assembly is also provided with a front roller. It is suitable for complex road conditions underground, has a compact and flexible structure, improves the work efficiency of underground workers, and saves manpower.

Description

Technical Field

[0001] The invention relates to the field of underground coal mine engineering machinery, in particular to an explosion-proof diesel engine wet concrete paver used in underground coal mines. Background Art

[0002] The paving method currently used in coal mines is: the concrete materials transported by concrete mixer trucks are delivered to the working surface that needs to be paved. Positioning plates need to be laid in advance on both sides of the paved road, and the paving width is confirmed. Then the materials unloaded by the mixer trucks are spread a little bit by hand. The workers have high workload and low work efficiency, which has a great harm to their physical and mental health. In addition, the paving thickness and flatness cannot be guaranteed.

[0003] In view of the special use environment underground in coal mines, the whole vehicle needs to be designed to be explosion-proof, and it is necessary to obtain a national safety mark certificate. At the same time, due to the relatively narrow tunnels underground in coal mines, the requirements for the external dimensions are high. In addition, the existing domestic pavers have wide external dimensions, high heights, and extremely high levels of electro-hydraulic control, which are not conducive to explosion-proof modification. The pavers commonly seen on the road surface are not easy to achieve explosion-proof modification underground in coal mines. Now it is necessary to conduct research and design of the pavers based on specific working conditions. Summary of the invention

[0004] The purpose of the present invention is to provide an explosion-proof diesel engine wet concrete paver for use in coal mines, which is suitable for complex road conditions underground and has a compact and flexible structure, improves the work efficiency of underground workers, improves the working environment, saves manpower, and can obtain relatively good economic and social benefits.

[0005] In order to solve the above problems, the present invention discloses an explosion-proof diesel engine wet concrete paver for underground coal mines, comprising a crawler chassis assembly for providing power for walking, and a hopper feed chute assembly and an explosion-proof diesel engine assembly sequentially arranged above the crawler chassis assembly, the explosion-proof diesel engine assembly is provided with a vibrating mechanism leveling cylinder connected to the vibrating mechanism, the vibrating mechanism comprises a vibrating connecting short plate and a vibrating connecting long plate, the vibrating connecting long plate is connected with a vibrating mechanism assembly provided with a pneumatic vibrator; a cab provided with a seat formed by a cab lifting cover plate and a cab lower cover plate is also provided, a lifting cylinder connecting plate is provided on the cab lower cover plate, a lifting cylinder one end is connected to the lifting cylinder connecting plate, and the other end is connected to the vibrating mechanism assembly, and the vibrating mechanism assembly is provided with a pneumatic vibrator; the crawler chassis assembly is also provided with a front roller.

[0006] Furthermore, the crawler chassis assembly includes a connecting frame and a crawler assembly supported by guide wheels, drag chain wheels, supporting wheels, and drive wheels. The drive wheels are also provided with a drive motor and a reducer to achieve walking, steering, service braking and parking braking, while supporting the overall structure.

[0007] Furthermore, the explosion-proof diesel engine assembly includes an explosion-proof diesel engine, and also includes a front-connected radiator assembly, a diesel tank, a transfer case, a travel plunger pump, a water supply tank, an exhaust gas treatment box, left and right material distribution plunger pumps, a vibrating pump, and a cylinder triple pump.

[0008] Furthermore, the feed trough assembly includes: a fixed plate welded to the feed hopper and a fixed seat welded piece on the side that bolts the left and right track assemblies together.

[0009] Furthermore, the bottom of the hopper is a 5° inclined structure, pneumatic vibrators for the feeding hopper are installed on both sides, and a feeding and blocking rubber plate is installed on the rear side to facilitate discharging.

[0010] Furthermore, a hopper opening control cylinder is provided at the rear of the feed trough assembly, which is used to control the front hopper flap for feeding, and a motor is provided on each of the left and right sides of the feed distribution reducer motor assembly, which respectively drives the left spiral feed distribution shaft and the right spiral feed distribution shaft arranged on both sides of the reducer motor assembly.

[0011] The beneficial effects of the present invention are:

[0012] 1. The whole machine adopts explosion-proof diesel engine as power and hydraulic transmission, which is suitable for use in coal mine environment;

[0013] 2. Install a concrete hopper with a capacity of 3m³;

[0014] 3. The hopper is tilted 5° for easy feeding;

[0015] 4. Automatic material feeding, material distribution, vibration, leveling and smoothing are adopted to greatly reduce the labor intensity of workers and improve the paving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a structural schematic diagram of the present invention.

[0018] Figure 2 It is a structural diagram of the crawler chassis assembly of the present invention.

[0019] Figure 3 It is a structural diagram of the explosion-proof diesel engine assembly of the present invention.

[0020] Figure 4It is a structural diagram of the hopper feed trough of the present invention.

[0021] Figure 5 It is a schematic diagram of the use of the present invention.

[0022] Figure 6 It is a schematic diagram of the paving state of the present invention. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] Embodiment 1:

[0025] like Figure 1-4 The explosion-proof diesel engine wet concrete paver for underground coal mines shown in the figure comprises a crawler chassis assembly 2 for providing power for walking, and a hopper chute assembly 3 and an explosion-proof diesel engine assembly 4 which are sequentially arranged above the crawler chassis assembly 2, the explosion-proof diesel engine assembly being provided with a vibrating mechanism leveling cylinder 5 connected to the vibrating mechanism, the vibrating mechanism comprising a vibrating connecting short plate 6 and a vibrating connecting long plate 7, the vibrating connecting long plate being connected with a vibrating mechanism assembly 13 provided with a pneumatic vibrator 14; a cab 15 provided with a seat 10 formed by a cab lifting cover plate 8 and a cab lower cover plate 9 is also provided, a lifting cylinder connecting plate 11 is provided on the cab lower cover plate, a lifting cylinder 12 is provided with one end connected to the lifting cylinder connecting plate, and the other end connected to the vibrating mechanism assembly 13, the vibrating mechanism assembly being provided with a pneumatic vibrator 14; a front roller 1 is also provided on the crawler chassis assembly.

[0026] The front roller 1 is fixed on the walking track assembly 2 to prevent the front explosion-proof diesel engine concrete mixer truck from hitting the front feed chute of the paver and the lower track structure during unloading and reversing, and also plays a role in guiding the unloading direction of the mixer truck.

[0027] The crawler chassis assembly includes a connecting frame 18 and a crawler assembly 17 supported by a guide wheel 16, a drag chain wheel 19, a supporting wheel 20, and a driving wheel 21. The driving wheel is also provided with a driving motor 22 and a reducer 23 to achieve walking, steering, driving braking and parking braking, while supporting the overall structure.

[0028] The explosion-proof diesel engine assembly includes an explosion-proof diesel engine 24, a front connection radiator assembly 33, a diesel tank 25, a transfer case 26, a travel plunger pump 27, a water supply tank 28, an exhaust gas treatment box 29, left and right material distribution plunger pumps 30, a vibrating pump 31, and a cylinder triple pump 32. The diesel engine is modified to be explosion-proof, and the tail gas is washed and purified to meet the standard of low pollution emission underground. The diesel engine transmits power to the transfer case, and the transfer case divides the power into three, and connects the three plunger pumps through splines to transmit the power to the next level.

[0029] The fixing plate 34 welded on the lower side of the feed hopper 43 and the fixing seat weldment 35 on the side bolt the track assemblies on the left and right sides together, which can save bottom space and reduce the height of the vehicle. In order to facilitate feeding, the bottom of the hopper is a 5° inclined structure, and pneumatic vibrators 36 for the feed hopper are installed on both sides to prevent concrete stones from adhering to the side walls of the hopper. The feed baffle rubber plate 37 on the rear side prevents materials from splashing around during the discharging process.

[0030] Schematic diagram of material feeding work, such as Figure 5 Shown

[0031] The front-discharging concrete mixer truck stops at the front of the feed hopper, extends the discharge chute into the hopper, and unloads the material. The hopper capacity is 3m³, and the mixer truck capacity is 2.5m³, which can hold a whole truckload of material. The hopper opening cylinder 41 is controlled to open the front hopper flap 38 for feeding.

[0032] There is a motor on each side of the left and right sides of the material distribution reducer motor assembly 40, which drives the left spiral material distribution shaft 39 and the right spiral material distribution shaft 42 respectively, and can realize the left and right spirals to run separately or simultaneously, with stepless speed change to meet the requirements of paving width, speed and layer thickness.

[0033] The height of the vibrating and leveling cylinder 5 is adjusted to suit the height of the template to adjust the paving thickness. The lifting cylinder 12 plays a role in adjustment and leveling during the vibration process.

[0034] Schematic diagram of paving work, such as Figure 6 Shown

[0035] The templates are set up on both sides, the paving thickness and paving width are confirmed, and the allocated materials are vibrated, compacted and leveled through the vibrating mechanism assembly 13.

[0036] The embodiments described above are merely descriptions of preferred implementations of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the scope of protection determined by the claims of the present invention.

Claims

1. An explosion-proof diesel engine wet concrete paver for underground coal mines, characterized by: The invention comprises a crawler chassis assembly (2) for providing power for walking, and a hopper trough assembly (3) and an explosion-proof diesel engine assembly (4) arranged above the crawler chassis assembly (2) in sequence. The explosion-proof diesel engine assembly is provided with a vibrating mechanism leveling cylinder (5) connected to the vibrating mechanism. The vibrating mechanism comprises a vibrating connecting short plate (6) and a vibrating connecting long plate (7). The vibrating connecting long plate is connected to a vibrating mechanism assembly (13) provided with a pneumatic vibrator (14). The invention also comprises a cab (15) provided with a seat (10) formed by a cab lifting cover plate (8) and a cab lower cover plate (9). The cab lower cover plate is provided with a lifting cylinder connecting plate (11). The vibrating mechanism assembly (12) is provided with one end connected to the lifting cylinder connecting plate and the other end connected to the vibrating mechanism assembly (13). A pneumatic vibrator (14) is provided on the crawler chassis assembly; a front roller (1) is also provided on the crawler chassis assembly; the crawler chassis assembly includes a connecting frame (18) and a crawler assembly (17) supported by a guide wheel (16), a drag chain wheel (19), a supporting wheel (20), and a driving wheel (21); the driving wheel is also provided with a driving motor (22) and a reducer (23) to achieve walking, steering, service braking and parking braking, and support the overall structure; the explosion-proof diesel engine assembly includes an explosion-proof diesel engine (24), and also includes a front connection radiator assembly (33), a diesel tank (25), a transfer case (26), a travel plunger pump (27), a water supply tank (28), an exhaust gas treatment tank (29), left and right material distribution plunger pumps (30), a vibrating pump (31), and a cylinder triple pump (32).

2. The explosion-proof diesel engine wet concrete paver for underground coal mines according to claim 1, characterized in that: The feed trough assembly (3) comprises: a fixing plate (34) welded to the feed hopper (43) and a fixing seat welding piece (35) on the side surface, which bolts the track assemblies on the left and right sides together.

3. The explosion-proof diesel engine wet concrete paver for underground coal mines according to claim 2, characterized in that: The bottom of the hopper is a 5° inclined structure, with pneumatic vibrators (36) for feeding hoppers installed on both sides and a feeding and blocking rubber plate (37) on the rear side to facilitate discharging.

4. The explosion-proof diesel engine wet concrete paver for underground coal mines according to claim 1, characterized in that: The rear part of the feed chute assembly is provided with a hopper opening control cylinder (41) for controlling the front hopper flap (38) to feed materials. A feed distribution reducer motor assembly (40) is also provided with a motor on each of the left and right sides, respectively driving a left spiral feed distribution shaft (39) and a right spiral feed distribution shaft (42) provided on both sides of the reducer motor assembly.

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